<!DOCTYPE html><!--文档类型的说明-->
<html>
    <head>
        <meta charset="UTF-8"><!--网页字符编码-->
        <title>网页标题</title>
    </head>

    <body>
        <h1>一级标题</h1><!--6个,常用四级标题-->
        <h2>二级标题</h2>
        网页主题

        <p>hello</p>
        <hr>
        <p><strong>hello 3&lt;4 &copy;  &nbsp; &nbsp; &nbsp; &nbsp;hh </strong> <br><i>every</i></p>



        

    </body>
</html>